all taxes are equal to 0 can you solve in excel please and show how

Suppose that your total asset is evaluated at 550,000 dollars in which $350,000 is debt and $200,000 is equity. The cost of debt is 3% and the cost of equity is 5%. Suppose that you plan to invest this money in product X which will yield an annual cash flow of $80 000 (before tax) over the next 10 years with a terminal value estimated at $20,000 (value at year 10). Calculate the ROA of this project? What if you must repay the debt in equal payments in the coming ten years (calculate the ROE)